<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
  <head>
    <title>首页</title>
    <style>
      body{
        display: flex;
        margin: 0;
        padding: 0;
      }
      a{
        text-decoration: none;
      }
      h1{
        margin: auto;
        width: 300px;
        height: 100px;
        line-height: 100px;
        text-align: center;
        background: aqua;
        border-radius: 10px;
      }
    </style>
  </head>
  <body>
  <h1>
    <a href="${pageContext.request.contextPath}/book/allBook">进入书籍展示界面</a>
  </h1>
  </body>
</html>
